Highlights ■ Instrument developed to assess medical students’ perceptions of OSCEs. ■ Evidence of strong validity and excellent internal consistency. ■ Formative and summative OSCE modalities were also assessed. ■ Tool supports educational assessment and feedback in medical education. ABSTRACT Objective: To develop, validate, and apply an instrument aimed at assessing medical students’ perceptions of the impact of an Objective Structured Clinical Examination (OSCE), both in its peer-based formative and traditional summative modalities, on clinical learning. Methods: This study used […]